Top method for extracting a correlation matrix using an API endpoint

I am currently storing correlations on Google Firebase in a structure that resembles the following:

{a: {a: 1.0, b: 0.6, c: -0.3, ...}, b: {a: 0.6, b: 1.0, c: -0.5, ...}, ...}

My goal is to efficiently retrieve a complete correlation matrix while also having the flexibility to choose any combination of items.

Although I have a solution in place using calls like "[GET]: /correlations/a/b", it requires multiple endpoint calls to download the entire correlation matrix, even though I eliminate redundancy by not calling "/correlations/a/b", "/correlations/b/a" and "/correlations/a/a".

I read about the possibility of using a [POST] request with a body to fetch the matrix by making just one call to the endpoint. However, I'm unsure if this approach is considered good practice or if there is a better way to tackle this issue.

Any insights would be greatly appreciated!

typescriptfirebasebackendcorrelationendpoint

Answer №1

To retrieve the desired output, you have the option of making batch requests and utilizing parameters in GET requests to obtain correlations.

   /api?q1=cor(a,b)&q2=cor(b,c)

Alternatively, you can opt for post requests with a structured body.

   /api

where body = {"correlation vars": [(a,b), (c,d)]}
  1. Consider designing an API that prioritizes readability.
  2. For complex queries, consider using POST requests instead.
  3. Simple queries can be executed through parameters in GET requests.
  4. Enhance speed by compressing data using gZip or byte array to optimize I/O calls.
  5. Make informed decisions based on your specific needs regarding CPU computation versus cost of I/O calls.

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